How to get vertex index by map vertex index

hi, I want to get vertex index by map vertex index and get map vertex index by vertex index.
but I couldn’t find the functions.
Thank you for your help.:):

in max? using edit poly or edit mesh?

AFAIK there are not built in functions for this. You have to do some digging through the verts to find their relationships to each other.

[QUOTE=speuzer;9211]in max? using edit poly or edit mesh?

AFAIK there are not built in functions for this. You have to do some digging through the verts to find their relationships to each other.[/QUOTE]

Thank you.
I use polyop.getFaceVerts and polyop.getMapFace to find their relationships.